PartsTable TECHNICAL DATA SHEET

NSN 5940-01-666-8015Government record, cited

Terminal Junction Block, Sectiona5940-01-666-8015

NSN 5940-01-666-8015 · NIIN 016668015 · Part number 16321-3

Cooper Bussmann, Llc Dba Cooper Industries · FSC 5940 — Lugs, Terminals, and Terminal Strips · FSG 59 — Electrical and Electronic Equipment Components · CAGE 71400

Government record, cited

NSN 5940-01-666-8015 — this item is cataloged by the U.S. Government under National Stock Number 5940-01-666-8015. Manufacturer of record part number: 16321-3.

Also searched as 5940-01-666-8015 · 5940016668015 · NIIN 016668015 · 01-666-8015 · FSC 5940 Lugs, Terminals, and Terminal Strips · CAGE 71400 · 16321-3

Nearby stock numbers ← 5940-01-666-8011 Terminal Junction Block, Sectiona · 5940-01-666-8023 Adapter, Radio Frequency Cable →

Features

Terminal Junction Block,sectiona — FSC 5940
Current Type: AC OR DC
Mounting Method: PANEL
Block Type: CIRCUIT BREAKER
Pole Quantity: 3
Wire Size Accommodated: 14.0 AWG MINIMUM AND 4.0 AWG MAXIMUM
Terminal Type and Quantity: 21 SCREW
Voltage Rating: 600.0 VOLTS MAXIMUM

Identification

NSN: 5940-01-666-8015
NIIN: 016668015
FSC: 5940 — Lugs, Terminals, and Terminal Strips
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: 16321-3
Manufacturer: Cooper Bussmann, Llc Dba Cooper Industries

General Description

The Terminal Junction Block,sectiona, cataloged under National Stock Number 5940-01-666-8015, is classified within Federal Supply Class 5940 (Lugs, Terminals, and Terminal Strips) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cooper Bussmann, Llc Dba Cooper Industries. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5940-01-666-8015
Primary Part Number	16321-3
Item Name	Terminal Junction Block,sectiona
FSC / FSG	5940 / 59 — Lugs, Terminals, and Terminal Strips
Manufacturer	Cooper Bussmann, Llc Dba Cooper Industries
Status	ACTIVE
Current Type	AC OR DC
Mounting Method	PANEL
Block Type	CIRCUIT BREAKER
Pole Quantity	3
Wire Size Accommodated	14.0 AWG MINIMUM AND 4.0 AWG MAXIMUM
Terminal Type and Quantity	21 SCREW
Voltage Rating	600.0 VOLTS MAXIMUM
Current Rating in Amps	175.0

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
16321-3 PRIMARY	Cooper Bussmann, Llc Dba Cooper Industries (USA)

No interchangeability data on file.

Other items in FSC 5940 — Lugs, Terminals, and Terminal Strips

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5940-00-000-0045

TERMINAL BOARD ASSEMBLY

5940-00-000-0235

5940-00-000-0235 · Item name not on file

5940-00-001-1331

5940-00-001-1331 · Item name not on file

5940-00-001-1332

5940-00-001-1332 · Item name not on file

5940-00-001-1333

5940-00-001-1333 · Item name not on file

5940-00-001-1335

5940-00-001-1335 · Item name not on file

5940-00-001-1336

5940-00-001-1336 · Item name not on file

5940-00-001-1358

5940-00-001-1358 · Item name not on file

Frequently Asked Questions

What is NSN 5940-01-666-8015?

NSN 5940-01-666-8015 is a Terminal Junction Block,sectiona, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5940, Lugs, Terminals, and Terminal Strips. Status: active.

What part numbers are listed for NSN 5940-01-666-8015?

NSN 5940-01-666-8015 has 1 manufacturer part number on file: 16321-3 (Cooper Bussmann, Llc Dba Cooper Industries).

What are the specifications of 16321-3?

Key specifications for 16321-3: Overall Height: 3.32 INCHES NOMINAL IN; Current Type: AC OR DC; Mounting Method: PANEL; Block Type: CIRCUIT BREAKER. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5940-01-666-8015 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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